Brick-elevator



J. H. SEARS & B. MERRIT'L BRIGK ELBVATOR.

N0. 31.728. Patented Mar. 19. 1861.

UNITED STATES PATENT OFFICE.

B. MERRITT, OB CHELSEA, AND J. H. SEARS, OF BOSTON, MASSAGHUSETIS.

BRICK-ELEVA'IOR.

Speqification of Letters Patent N0. 31,728, dated March 19, 1861.

T0 all whom z't may conckzm:

Be .it known that We, BENJAMIN MERRITT, of Chelsea, ancl JABEZ H. SEARS,of Bosto'n. county of Sufiolk, and State 01: Massachusetts, haveinvented an Improved Brick- Elevator, of which the following is a full,

clear, ancl ex'act description, reference being had to the accompanyingdrawings, mak ing part of this specification, in Which Figure l is aperspective view 0f the ele vator. Fig. 2 a view of one of the hods.

We are aware that bricks a-nd other ma terials have been raisecl by anelevacor cousising of enclless ohains carried over drums or windlasses,the chains carrying buckets 01" hocls in Which the article to be raisedwas placed. In these the bricks wl1en raised t0 the required height,were either removed by band frorh the hod or wem emptied in a confuseclheap 011130 a plabform 01 into a box placecl to receive them. Thiseither necessitatecl repeated handling of the bricks, or risked breakingthem.

The object 0f our present invention is t0 produce an elevator, whichafter raising the bricks to the required height, Will discharge themnicely packed into the ordinary shoulder hocl 01' other receptacle,without breaking them, and without the necessity of aga.in handling themto pack them.

Our invention consists in so combining tl1e elevating hocl, the encllesschains, ancl a series of ins 011 the elevating drun1, that when the hodhas been raisecl to the requirecl height, it shall be carriecl overlaterally towarcl the floor or platfonn on Wlll(}ll the receiving hoclis placecl, ancl be tilted 01 turneol over in such a manner as to emptyits loal 0f bricks into the receivin 110d, without clisturbing theirregular 01' er; so as not to require their repacking in the shoulolerhod, ancl without (langer of breaking them.

That others skillecl in the art may understancl ancl use our inventionWG Will proceecl to describe the manner in Wl1i0h we have carriecl outthe same.

In the said drawings A represents the fioor 0f the builcling, to whichthe bricks are t0 loe elevated; B, B, two heavy braces or arms, whichare secured in any suitable manner to the floor, and project over itsedge (01' over a hatch way or opening left in the several floors 0f' thebuilcling 130 accommodate the elevator). These braces B serve asbearings for the axle a of a. drum C Which ca.rries 011 each of itsheads an endless cha'in D of sufiicierit length to reach the lower floor01 the level from wl1ich the bricks are to be raisecl, where each chainpasses around the head of another drum 01 windlass E, the axle b ofwhieh l1as its bearings in the sides of a frame F. Power is appliecl t0the windlass E fiom a crank d on asl1ort shaft which earries a pinion c,Which engages with a 00g wheel e on the end 0f the axle b. The heads fof the wincllass E as well as the head of the drun1 C are composed ofthree arms set in a triangular position, and each of which is furnishedat its outer encl with a hook 5, over Whi0h the endless chain D isdistended, the links z of the chain being of tl1e proper length to folclaround the hooks, which engage with not-ches 6 in the chain and preventsits slipping.

The heaol hof the clrum C is a disk, in Which the hooks 5 are set in atriangula.r position, ancl a't distances corresponcling with the hooksin the other heads, and over Which the chain asses in a similar manner.This disk also has projecting fr0m its face, three pins 7 set in a.smaller triangle than the pins 5.

An elevating box or hod G (shown detached in Fig. 2) has attachecl to ita.t each end a leg 0r bar l which is pivotecl at 8 to one 0f the links zof the chain D. Thema is also attached to one end of this hocl by apivot 9, a latch m Which is helcl down by a spring n. A notch in one endof this latch engages With the end of the link v1, which is bent 0ver at10 for this purpose. This pre Vents the 110d fronf1 turning 011 thepivot 8. The other end of this latch is beveled ofi as shown at 11. H isan ordinary shoulder 110d placed ina.n inclinecl position 011 the fl0orA, t0 receive the bricks ;0 which have been regularly packecl in theelevating 110d.

Any convenient number of elevating hods G may be attached t0 ehe chainsD; ancl these chains may be lengthenecl as requirecl by adding morelinks z.

The folloWing is the operation of this elevator: The hocl G being packedWith lbricks p, the windlass is turnecl in the direction of the arrow l,until t-l1e hod has been raised to the drum C, when tl1e latch m strikesone of tl1e pins 7 ancl unlatches the hod from the chain, the inclinedend 11 0f t-he latch :at the szune time throws the 110d toward the floorA, the hod turning 0n its pivots 8. As the drum C continues t0 revolve,the hod G is tilted over still farther until it empties the bricks pinto the hod H, placing them in the sa1ne regular order which tl1eyoccupied in the hod G. A further revolution of the drum C lifts the hodG clear of the hod H and carries it over the drm when the bar Z strikingone of the pins 7 lorings the hod back to its normal position, and thelatch m locks it With the link A p1n 3 on the hod strikes the link z andstops the hod, Which is then carried down in a reversed osition as shownat G t0 pass under the windlass and be again filled.

It will be perceived that by the combination and arrangement intriangular positions of the pins 5 and 7, a considerable lateral motionis given t0 the hod G to carry it over the edge of the floor A asrequired.

Mortar 01 other materials may in the same way be elevatecl in the hoolsG and be emptied into asuitable receptacle on the floor A.

At I is shown the manner in Which an ordinary shoulder hod. 1nay be sentup on the chains Da small hook 0 .at each end of lt, hooking over pinsprojecting from the inner side of the opposite links z.

In some cases we propose to apply the hoisting power 130 the upper drum01' windlass C.

What we claim as of our invention, anti desire to secure by LettersPatent, is

l. The combination 0f the swiveling hods Gr, latch m, and pins 7, withthe enclless chain D, the whole arranged and operating as described forthe purposes set forph.

2. The arrangement 0f the pins 5, and 7, in triangular positions f01 thepurpose of giving the greatest amount of lateral throvv to the hod G, asand for the purpose described.

BENJAMIN MERRITT. JABEZ H. SEARS. Witnesses:

Tnos. R. ROACH, EDMUND MASSON.

